Question

A person start by a car from trivandrum to kollam and at the same time another person starts from kollam by car to trivandrum .after passing each other they complete there journey in two hours and half hour respectively at what rate does the second person drive the car if the first car run at speed of 40 km /hr

Answer 1

second person starts driving from Kollam to Trivandrum the time of journey is 5 hour ,the speed of car is 40km/hr the distance between this two cities is 200 km
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Answer 2

Speed of 2nd Car = 40 km/Hr

Step-by-step explanation:

First Car runs at Speed 40 km/hr

Second car Runs at  S  km/hr

Let say They Cross each other after T hrs

Distance Covered by 1st  = 40T  km

Distance Covered by 2nd = ST  km

Let Total Distance = 40T + ST

Remaining Distance of  1st = 40+ST - 40T  =  ST  km

Remaining Distance of 2nd  = 40 + ST - ST = 40T  km

ST  = 2.5 * 40

40T  = 2.5S

S/40  = 40/S

=> S² =  40²

=> S = 40

Speed of 2nd Car = 40 km/Hr

40:40 = 1:1

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